Table 4.

Comparison of outcomes and complications in both groups

Data	Endoprosthesis group (n = 19)		Cement spacer group (n = 39)		P-value
	No.	%	No.	%
Follow-up period (m)
Mean ± SD	79 ± 57		42.4 ± 36		0.020
MSTS score
Mean ± SD	24.8 ± 1.1		23.9 ± 1.4		0.018
Active range of motion (°)
Forward flexion	30.3 ± 35.8		17.3 ± 20.0		0.184
Extension	48.0 ± 25.3		26.7 ± 19.1		0.075
Abduction	33.4 ± 18.7		16.6 ± 18.7		0.006
Local recurrence (n = 10)	2	10.5%	4	10.3%	0.975
Chest metastasis (n = 9)	3	15.8%	6	15.4%	0.968
Complications					0.879
Radial nerve palsy (n = 3)	0	0%	3	7.7%
Deep infection (n = 2)	1	5.3%	1	2.6%
Skin sloughing (n = 1)	0	0%	1	2.6%
Wound gapping (n = 1)	0	0%	1	2.6%
Implant failure and revision (n = 3)	1	5.3%	2	5.1%
Dislocation (n = 1)	0	0%	1	2.6%
Proximal migration (n = 4)	2	10.5%	2	5.1%
Downward subluxation (n = 2)	1	5.3%	1	2.6%

MSTS The Musculoskeletal Tumor Society